NDLI: Compact Unidirectional Ring Dielectric Resonator Antennas With Lateral Radiation

Content Provider	IEEE Xplore Digital Library
Author	Lei Guo Kwok Wa Leung Yong Mei Pan
Copyright Year	1963
Abstract	A compact unidirectional ring dielectric resonator (DR) antenna (DRA) with lateral radiation patterns is investigated for the first time. The unidirectional patterns are obtained by combining an equivalent horizontal magnetic dipole of the DR HEM_11δ+1 mode and a vertical electric dipole located at the center of the DR. A wideband version of the design is also investigated, in which the higher-order DR HEM_11δ+2 mode is excited and merged with a slot mode to give a wideband magnetic dipole. The wideband electric dipole is obtained by making use of the parasitic effect of the DR. To demonstrate the idea, the original and wideband DRAs were designed in WLAN (2.40-2.48 GHz) and WiMax (3.4-3.7 GHz) bands, respectively. Their prototypes were fabricated and measured, and reasonable agreement between the measured and simulated results was obtained. In each design, the measured and simulated front-to-back radiation ratios are both over 15 dB, with measured and simulated 3-dB beamwidths of at least 117°.
Sponsorship	IEEE Antennas and Propagation Society
Starting Page	5334
Ending Page	5342
Page Count	9
File Size	1993494
File Format	PDF
ISSN	0018926X
Volume Number	63
Issue Number	12
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Antenna radiation patterns Antenna measurements Wideband Dipole antennas Dielectric resonator antennas Frequency measurement lateral radiation Dielectric resonator antenna unidirectional antenna Dielectric resonator antenna (DRA)
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering

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